Sound production monomer and electronic equipment

Abstract

The invention discloses a sound production monomer and electronic equipment, and relates to the technical field of electro-acoustic conversion. The single sounding body comprises a sound basin, a voice coil and a supporting structure, a cone of the sound basin is provided with a first connecting position and a second connecting position at an interval from inside to outside, and an area between the first connecting position and the second connecting position on the cone is a supporting area; the end part of the voice coil is connected with the first connecting position; the supporting structure comprises a plurality of supporting walls, the multiple supporting walls are sequentially connected end to end in the circumferential direction to form the polygonal annular closed supporting structure, and any two adjacent supporting walls are connected to form an edge; the two ends of the supporting structure in the first direction sleeve the supporting area and are connected with the second connecting position, and sleeve the voice coil and are connected with the outer wall of the voice coil. According to the invention, the intensity of a sound production monomer vibration system can be effectively enhanced, the segmentation vibration degree during the vibration of the sound cone is reduced, sound distortion is avoided, the fidelity of sound is improved, the smoothness of frequency response is prevented from being influenced, the sensitivity curve is optimized, and the acoustic performance is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of electro-acoustic conversion, and particularly to a sounding element and an electronic device. Background Art

[0002] Currently, when applying an audio signal to a sounding element, such as a speaker element, the voice coil moves in the magnetic gap to cut the magnetic induction lines. The voice coil drives the speaker cone to vibrate and generate sound. In an ideal state, it is considered that the vibration system of the sounding element performs piston motion. However, in actual situations, the speaker cone is not a completely rigid structure, and it will deform during movement. There is a time difference in the propagation of its vibration from the center of the speaker cone to the edge, that is, the vibration propagates from the center to the edge. When it encounters the surround and is reflected back, it will interfere with other vibration waveforms. When the frequency reaches a certain value, the mutual interference of the vibration waveforms will cause regional vibration of the speaker cone, that is, splitting vibration.

[0003] The negative impact of splitting vibration on the acoustic performance of the sounding element is very large, which is mainly manifested in the following aspects: (1) Splitting vibration will cause sound distortion, making the sound performance of the sounding element inaccurate and the acoustic performance poor; (2) Splitting vibration will damage the sound fidelity, making the sound quality of the sounding element decline and affecting the acoustic performance; (3) Splitting vibration will cause abnormal vibration of the sounding element at certain frequencies and affect the smoothness of the frequency response, thereby affecting the acoustic performance. Summary of the Invention

[0004] The main object of the present invention is to propose a sounding element and an electronic device, aiming to solve the technical problem of poor acoustic performance of the existing sounding element.

[0005] To achieve the above object, the present invention proposes a sounding element, which includes:

[0006] A speaker cone, the speaker cone includes a cone body and a surround connected to the outer edge of the cone body. The cone body is provided with a first connection position and a second connection position at intervals from the inside to the outside. The area of the cone body between the first connection position and the second connection position is a support area;

[0007] A voice coil, the end of the voice coil is connected to the first connection position and is used to drive the speaker cone to vibrate along the first direction;

[0008] A support structure, the support structure includes a plurality of support walls. The plurality of support walls are sequentially connected end to end in a circumferential direction to form the support structure that is a polyhedral ring-shaped closed body, and an edge is formed between any two adjacent support walls; the two ends of the support structure along the first direction are respectively a first end and a second end. Among them, the first end is sleeved outside the support area and connected to the second connection position, and the second end is sleeved outside the voice coil and connected to the outer wall of the voice coil.

[0009] In one embodiment, at the position corresponding to the first end of each of the support walls, there is a first arc edge that matches the shape of the outer wall surface of the cone and protrudes toward the voice coil. Any two adjacent first arc edges are connected at the edge, and the first arc edge is continuously attached to the outer wall surface of the cone along the circumference.

[0010] In one embodiment, any two adjacent first arc edges are connected at the corresponding edge to form a corner, and a plurality of the corners are at the same height along the first direction of the cone, so that a plurality of the first arc edges are sequentially connected along the circumference to form the end edge of the first end in a skirt shape.

[0011] In one embodiment, the cone is a circular cone, the diameter of the outer edge of the large end of the cone is d1, and the diameter of the outer wall surface of the cone where the second connection position is located corresponding to the corner is d2, where d1 / 3 ≤ d2 ≤ 2d1 / 3.

[0012] In one embodiment, a plurality of the corners are evenly distributed at intervals along the circumference;

[0013] And / or,

[0014] Any two adjacent first arc edges are symmetrically distributed with respect to the corresponding edge.

[0015] In one embodiment, at the second end of each of the support walls, there is a second arc edge that matches the shape of the outer wall surface of the voice coil. Any two adjacent second arc edges are connected at the edge, and the second arc edge is continuously attached to the outer wall surface of the voice coil along the circumference.

[0016] In one embodiment, a plurality of the second arc edges are sequentially connected end to end along the circumference to form the end edge of the second end in a complete circle, and the height of each part of the end edge of the second end is the same along the first direction.

[0017] In one embodiment, the number of the support walls is n, where n is an odd number greater than 1.

[0018] In one embodiment, the end face of the first end is an inclined surface that matches the outer wall surface of the cone diaphragm;

[0019] And / or,

[0020] The end face of the second end is an inclined surface that matches the outer wall surface of the voice coil.

[0021] In one embodiment, the sounding element further includes a centering washer. The inner edge of the centering washer is connected to the position of the outer wall of the voice coil close to the end, and the second end is connected to the position on the outer wall of the voice coil between the inner edge of the centering washer and the end.

[0022] In one embodiment, the distance between the inner edge of the centering support piece and the end part along the first direction is L1, and the distance between the second end and the end part along the first direction is L2, where L1 / 3 ≤ L2 < L1.

[0023] In one embodiment, each of the support walls is an equal-thickness support wall with a uniform thickness, and the thicknesses of the multiple support walls are the same; the cone is an equal-thickness cone with a uniform wall thickness;

[0024] Wherein, the thickness of the support wall is h1, and the thickness of the cone is h2, and h1 ≥ h2.

[0025] In one embodiment, a convex portion protruding away from the voice coil is formed in the area of the cone corresponding to the inside of the voice coil; the support structure is an integrally formed part, and the first end is bonded to the first connection position, and the second end is bonded to the outer wall of the voice coil;

[0026] And / or,

[0027] A through hole is formed in the area of the cone corresponding to the inside of the voice coil, a dust cap is provided outside the through hole, and the support structure and the cone are integrally formed parts.

[0028] The present invention also provides an electronic device, and the electronic device uses the sound generating unit as described above.

[0029] In the technical solution of the present invention, the cone, the voice coil and the support structure are connected to each other to form a vibration system of the sound generating unit, and a stable structure with a triangular cross-section is formed between the support area of the cone, each support wall of the support structure and the voice coil, which can effectively enhance the strength of the vibration system of the sound generating unit, reduce the degree of splitting vibration when the speaker diaphragm vibrates, and further reduce the negative impact generated by the splitting vibration, avoid sound distortion, improve the sound fidelity, and avoid affecting the smoothness of the frequency response, optimize the sensitivity curve, and improve the acoustic performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can be obtained based on the structures shown in these drawings without creative efforts.

[0031] Figure 1 It is a front view schematic diagram of a sound generating unit according to an embodiment of the present invention;

[0032] Figure 2 It is a cross-sectional schematic diagram of a sound generating unit according to an embodiment of the present invention;

[0033] Figure 3 For Figure 2 Schematic diagram of dimension marking of the middle structure;

[0034] Figure 4 It is a schematic plan view of the support structure in the sounding monomer of an embodiment of the present invention.

[0035] Explanation of the reference numerals in the drawings:

[0036] 100, sounding monomer; 10, diaphragm; 11, cone; 111, first connection position; 112, second connection position; 113, support area; 114, protrusion; 12, surround; 20, voice coil; 21, end; 30, support structure; 31, support wall; 32, edge; 33, first end; 34, second end; 35, first arc edge; 36, corner; 37, second arc edge; 40, centering washer; 50, center magnet; 60, yoke; 70, magnetic gap.

[0037] The realization of the purpose, functional features and advantages of the present invention will be further described with reference to the embodiments and the accompanying drawings. Specific embodiments

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0039] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, if there are descriptions such as "first" and "second" involved in the embodiments of the present invention, the descriptions of "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0041] At present, when an audio signal is applied to a sounding element, such as a speaker element, the voice coil moves in the magnetic gap to cut the magnetic induction lines, and the voice coil drives the speaker cone to vibrate and generate sound. In an ideal state, it is considered that the vibration system of the sounding element performs piston motion. However, in actual situations, the speaker cone is not a completely rigid structure, and it will deform during movement. There is a time difference in the propagation of its vibration from the center of the speaker cone to the edge, that is, when the vibration propagates from the center to the edge and encounters the surround, it is reflected back and will interfere with other vibration waveforms. When the frequency reaches a certain value, the mutual interference of the vibration waveforms will cause regional vibration of the speaker cone, that is, splitting vibration.

[0042] The negative impact of splitting vibration on the acoustic performance of the sounding element is very large, mainly manifested in the following aspects: (1) Splitting vibration will cause sound distortion, making the sound performance of the sounding element inaccurate and the acoustic performance poor; (2) Splitting vibration will damage the sound fidelity, making the sound quality of the sounding element decline and affecting the acoustic performance; (3) Splitting vibration will cause abnormal vibration of the sounding element at certain frequencies and affect the smoothness of the frequency response, thereby affecting the acoustic performance.

[0043] To solve the above problems, the present invention proposes a sounding element and an electronic device.

[0044] As Figure 1 、 Figure 2 and Figure 4 shown, in an embodiment, the sounding element 100 includes a speaker cone 10, a voice coil 20, and a support structure 30. Among them, the speaker cone 10 includes a cone body 11 and a surround 12 connected to the outer edge of the cone body 11. The cone body 11 is provided with a first connection position 111 and a second connection position 112 at intervals from the inside to the outside. The area on the cone body 11 between the first connection position 111 and the second connection position 112 is the support area 113; the end 21 of the voice coil 20 is connected to the first connection position 111 and is used to drive the speaker cone 10 to vibrate in the first direction; the support structure 30 includes a plurality of support walls 31. The plurality of support walls 31 are sequentially connected end to end in the circumferential direction to form a polyhedral ring-shaped closed support structure 30, and an edge 32 is formed between any two adjacent support walls 31; the two ends of the support structure 30 in the first direction are respectively a first end 33 and a second end 34. Among them, the first end 33 is sleeved outside the support area 113 and is connected to the second connection position 112, and the second end 34 is sleeved outside the voice coil 20 and is connected to the outer wall of the voice coil 20.

[0045] The sounding element 100 of the present invention can be a speaker element. The sounding element 100 can be applied in the sound module of an electronic device. The electronic device can be a computer, a mobile phone, a smart wearable device, etc. This embodiment takes the sounding element 100 as a speaker element as an example for illustration.

[0046] As Figure 1 and Figure 2As shown, the small end of the cone 11 is arranged downward and the large end is arranged upward. The first connection position 111 and the second connection position 112 of the cone 11 are arranged at intervals from the inside to the outside. The second connection position 112 is above the first connection position 111. And the area of the cone 11 between the first connection position 111 and the second connection position 112 is the support area 113. The end 21 of the voice coil 20, specifically the upper end 21, is connected to the first connection position 111. The voice coil 20 vibrates in the first direction, and the first direction is Figure 1 the up-and-down direction shown, thereby driving the speaker cone 10 to vibrate in the up-and-down direction, so as to drive the air to generate sound and complete the energy conversion between electricity and sound.

[0047] A plurality of support walls 31 are sequentially connected end to end in the circumferential direction to form a support structure 30. The support structure 30 is a multi-faceted annular closed structure. It can be understood that one support wall 31 forms one surface. For example, as Figure 4 shown, five support walls 31 are sequentially connected end to end in the circumferential direction to form a five-sided annular closed structure. An edge 32 is formed between any two adjacent support walls 31. The edge 32 is the intersection edge of two adjacent surfaces of the support structure 30. The two ends of the support structure 30 in the up-and-down direction are respectively a first end 33 and a second end 34. Among them, the upper first end 33 is sleeved outside the support area 113 of the speaker cone 10 and connected to the second connection position 112. The second end 34 extends downward and is sleeved outside the voice coil 20 and connected to the outer wall of the voice coil 20, so as to realize the mutual connection of the cone 11, the voice coil 20 and the support structure 30. It can be understood that the cone 11, the voice coil 20 and the support structure 30 are mutually connected to form a vibration system of the sound generating unit 100, and a stable structure with a triangular cross-section is formed between the support area 113 of the cone 11, each support wall 31 of the support structure 30 and the voice coil 20, which can effectively enhance the strength of the vibration system of the sound generating unit 100, reduce the degree of splitting vibration when the speaker cone 10 vibrates, and further reduce the negative impact generated by the splitting vibration, avoid sound distortion, improve the sound fidelity, and avoid affecting the smoothness of the frequency response, optimize the sensitivity curve, and improve the acoustic performance.

[0048] Compared with the method of only adding a strengthening structure to the speaker cone 10, such as multiple reinforcing ribs, or using a material with stronger rigidity to make the speaker cone 10 to improve the strength of the speaker cone 10, and compared with the method of increasing the internal damping of the speaker cone 10 to make it decay rapidly after vibration to reduce the influence of splitting vibration, the sound generating unit 100 of the present invention only uses the support structure 30 to be mutually connected with the voice coil 20 and the speaker cone 10 to form a stable structure to improve the strength of the vibration system, with lower cost and better effect of improving the acoustic performance.

[0049] In one embodiment, at the position corresponding to the first end 33 of each support wall 31, there is a first arc-shaped edge 35 that matches the shape of the outer wall surface of the cone 11 and protrudes towards the voice coil 20. Any two adjacent first arc-shaped edges 35 are connected at the edge 32, and the first arc-shaped edge 35 is continuously attached to the outer wall surface of the cone 11 in the circumferential direction.

[0050] As Figure 1 , Figure 2 and Figure 4 shown, at the position corresponding to the first end 33 of each support wall 31, there is a first arc-shaped edge 35. The first arc-shaped edge 35 matches the shape of the outer wall surface of the cone 11, and the first arc-shaped edge 35 protrudes towards the voice coil 20, that is, downward. Moreover, each first arc-shaped edge 35 is continuously attached to the outer wall surface of the cone 11 in the circumferential direction, improving the connection stability and effectively enhancing the strength of the vibration system of the sounding element 100.

[0051] In one embodiment, any two adjacent first arc-shaped edges 35 are connected at the corresponding edge 32 to form a corner 36. A plurality of corners 36 are at the same height along the first direction of the cone 11, so that a plurality of first arc-shaped edges 35 are sequentially connected in the circumferential direction to form the end edge of the first end 33 in a skirt shape.

[0052] It can be understood that a plurality of first arc-shaped edges 35 are sequentially connected in the circumferential direction to form the end edge of the first end 33, that is, the upper end edge of the support structure 30. A plurality of corners 36 are evenly distributed at intervals along the circumferential direction of the cone 11 and are all at the same height of the cone 11, and each first arc-shaped edge 35 protrudes downward, thus forming an upper end edge in a skirt shape. While the support structure 30 is in a multi-faceted ring-shaped closed structure, it matches the outer wall surface of the cone 11, with a reasonable structural design and improved strength uniformity of the diaphragm 10.

[0053] As Figure 2 and Figure 3 shown, in one embodiment, the cone 11 is a circular cone 11. The diameter of the outer edge of the large end of the cone 11 is d1, and the diameter of the outer wall surface of the cone 11 where the second connection position 112 is located corresponding to the corner 36 is d2. Among them, d1 / 3 ≤ d2 ≤ 2d1 / 3, that is, in the diameter direction of the cone 11, the diameter of the outer wall surface of the cone 11 where the second connection position 112 is located corresponding to the corner 36 is 1 / 3 to 2 / 3 of the outer edge of the large end of the cone 11, realizing the effective support and strengthening of the voice coil 20 by the support structure 30.

[0054] In one embodiment, a plurality of corners 36 are evenly distributed at intervals along the circumferential direction to support the cone 11 evenly, further improving the strength uniformity of the diaphragm 10.

[0055] In one embodiment, any two adjacent first arc-shaped edges 35 are symmetrically distributed with respect to the corresponding edge 32 to further improve the strength uniformity of the diaphragm 10.

[0056] In one embodiment, at the second end 34 of each support wall 31, there is a second arc edge 37 that matches the shape of the outer wall surface of the voice coil 20. Any two adjacent second arc edges 37 are connected at the edge 32, and the second arc edge 37 is continuously attached to the outer wall surface of the voice coil 20 along the circumferential direction.

[0057] Such as Figure 1 、 Figure 2 and Figure 4 As shown, the second arc edge 37 is in the shape of the second arc edge 37. Any two adjacent arc edges are attached at the edge 32, and each second arc edge 37 matches the shape of the outer wall surface of the voice coil 20 and is continuously attached to the outer wall surface of the voice coil 20 along the circumferential direction, improving the connection stability, and thus effectively enhancing the strength of the vibration system of the sound generating unit 100.

[0058] Furthermore, a plurality of second arc edges 37 are sequentially connected end to end along the circumferential direction to form the edge of the second end 34 in a complete circle, and the height of each part of the edge of the second end 34 in the first direction is the same.

[0059] It can be understood that the voice coil 20 is a circular voice coil 20. The second arc edges 37 are sequentially connected end to end along the circumferential direction to form the edge of the second end 34, that is, to form the lower edge of the support structure 30. The lower edge is in a complete circle to match the outer wall surface of the voice coil 20 to achieve continuous attachment to the outside of the voice coil 20, and the height of each part of the edge of the second end 34 in the first direction is the same. The structural design is reasonable, and the strength uniformity of the voice coil 20 is improved, and thus the overall strength uniformity of the vibration system is improved.

[0060] In this embodiment, the support structure 30 has a circular-polygonal composite structure with a circular lower part and a polygonal upper part, and the small end faces downward and the large end faces upward. While being matched and connected with the voice coil 20 and the cone 11, the overall structural strength of the vibration system is improved, and splitting vibration is not easily generated, enhancing the acoustic performance of the sound generating unit 100.

[0061] Furthermore, the number of support walls 31 is n, where n is an odd number greater than 1. Compared with an even number of support walls 31, an odd number of support walls 31 is not easily subject to splitting vibration, further enhancing the acoustic performance of the sound generating unit 100.

[0062] In one embodiment, the end face of the first end 33 is an inclined surface that matches the outer wall surface of the cone. Since the outer wall surface of the cone 11 is inclined, the support walls 31 are inclined outward from bottom to top. By setting the end face of the first end 33 as an inclined surface, it is convenient to match and bond with the outer wall surface of the cone, improving the connection stability, and thus improving the structural stability of the vibration system.

[0063] In one embodiment, the end face of the second end 34 is an inclined surface that matches the outer wall surface of the voice coil 20. Since the support wall 31 slopes outward from bottom to top, the outer wall surface of the voice coil 20 is a vertically arranged circular surface. Setting the end face of the second end 34 as an inclined surface facilitates matching and bonding with the outer wall surface of the voice coil 20, improves the connection stability, and further improves the structural stability of the vibration system.

[0064] In one embodiment, the sound generating unit 100 further includes a centering washer 40. The inner edge of the centering washer 40 is connected to a position on the outer wall of the voice coil 20 near the end 21, and the second end 34 is connected to a position on the outer wall of the voice coil 20 between the inner edge of the centering washer 40 and the end 21.

[0065] Specifically, the centering washer 40 is also part of the vibration system. The inner edge of the centering washer 40 is connected to the outer wall of the voice coil 20 near the end 21, that is, the outer wall near the upper end of the voice coil 20. The centering washer 40 is located below the support structure 30. The second end 34 of the support structure 30, that is, the lower end, is connected to a position on the outer wall of the voice coil 20 between the inner of the centering washer 40 and the end 21 to avoid interference with the centering washer 40. By providing the centering washer 40 to center and support the voice coil 20, polarization of the voice coil 20 is prevented, and the vibration stability of the voice coil 20 is improved.

[0066] As Figure 2 and Figure 3 shown, in one embodiment, the distance between the inner edge of the centering washer 40 and the end 21 in the first direction is L1, and the distance between the second end 34 and the end 21 in the first direction is L2, where L1 / 3 ≤ L2 < L1. On the one hand, it avoids the second end 34 of the support structure 30 being too close to the end 21 of the voice coil 20, thereby avoiding the second end 34 of the support structure 30 affecting the connection between the end 21 of the voice coil 20 and the cone 11. On the other hand, it makes the height of the support structure 30 in the first direction, that is, the up and down direction, sufficient, effectively enhancing the strength of the vibration system of the sound generating unit 100 while being easy to manufacture.

[0067] As Figure 2 and Figure 3 shown, in one embodiment, each support wall 31 is an equal-thickness support wall 31 with a uniform thickness, and the thicknesses of the multiple support walls 31 are the same, improving the strength uniformity while being easy to manufacture. The cone 11 is an equal-thickness cone 11 with a uniform wall thickness, improving the strength uniformity while being easy to manufacture. Wherein, the thickness of the support wall 31 is h1, and the thickness of the cone 11 is h2, h1 ≥ h2, that is, the thickness of the support wall 31 is greater than the thickness of the cone 11 to effectively enhance the strength of the diaphragm 10.

[0068] In one embodiment, a protruding portion 114 protruding away from the voice coil 20 is formed in the area of the cone 11 corresponding to the inside of the voice coil 20; the support structure 30 is an integrally molded part, and the first end 33 is bonded to the first connection position 111, and the second end 34 is bonded to the outer wall of the voice coil 20.

[0069] As Figure 2 shown, the speaker cone 10 is a one-piece speaker cone 10. A protruding portion 114 protruding upward is formed in the area of the cone 11 corresponding to the inside of the voice coil 20. The support structure 30 is an integrally molded part. The assembly steps and assembly gaps are omitted, which is easy to manufacture. The material of the support structure 30 can be the same as that of the speaker cone 10, which simplifies the manufacturing and processing processes, unifies the mechanical properties, eliminates the thermal expansion difference, and enhances the stability. The first end 33 of the support structure 30 is bonded to the first connection position 111, which is easy to manufacture and improves the connection stability.

[0070] In another embodiment, a through hole is formed in the area of the cone 11 corresponding to the inside of the voice coil 20, and a dust cap is provided outside the through hole. The support structure 30 and the cone 11 are integrally molded parts.

[0071] The cone 11 is designed to form a through hole in the area corresponding to the inside of the voice coil 20, and a dust cap is provided outside the through hole, which can further suppress the splitting vibration, expand the high-frequency response and adjust the resonance frequency. The support structure 30 and the cone 11 are integrally molded parts. The assembly steps and assembly gaps are omitted, which is easy to manufacture. The material of the support structure 30 can be the same as that of the speaker cone 10, which simplifies the manufacturing and processing processes, unifies the mechanical properties, eliminates the thermal expansion difference, and enhances the stability.

[0072] In one embodiment, the speaker cone 10 is a composite cone. Compared with the speaker cone 10 made of a single material, the composite cone has the advantages of suppressing splitting vibration, reducing distortion, balancing weight and rigidity, broadening the frequency response range, and enhancing durability.

[0073] As Figure 1 and Figure 2 shown, in one embodiment, the sound generating unit 100 further includes a magnetic circuit system. The magnetic circuit system includes a center magnet 50 and a U-shaped iron 60 surrounding the center magnet 50. A magnetic gap 70 is formed between the U-shaped iron 60 and the center magnet 50, and the lower end of the voice coil 20 is located in the magnetic gap 70. When the voice coil 20 is energized, the voice coil 20 makes a reciprocating movement of cutting the magnetic force lines in the magnetic gap 70 to drive the speaker cone 10 to vibrate up and down, thereby driving the air to generate sound and completing the energy conversion between electricity and sound.

[0074] The present invention further provides an electronic device, which is applied with the sound generating unit 100 as described above. In one embodiment, the electronic device may be a computer, a mobile phone, a smart wearable device, etc. The specific structure and usage mode of the sound generating unit 100 in the electronic device refer to the above embodiments. Since the present electronic device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be elaborated herein one by one.

[0075] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. A sounding element, characterized in that, The sounding element includes: a diaphragm, the diaphragm includes a cone and a surround connected to the outer edge of the cone, the cone is provided with a first connection position and a second connection position at intervals from the inside to the outside, and the area of the cone between the first connection position and the second connection position is a support area; a voice coil, the end of the voice coil is connected to the first connection position and is used to drive the diaphragm to vibrate along the first direction; a support structure, the support structure includes a plurality of support walls, and the plurality of support walls are sequentially connected end to end in a circumferential direction to form the support structure that is a multi-faceted ring-shaped closed structure, and an edge is formed between any two adjacent support walls; the two ends of the support structure along the first direction are a first end and a second end respectively, wherein the first end is sleeved outside the support area and connected to the second connection position, and the second end is sleeved outside the voice coil and connected to the outer wall of the voice coil.

2. The sounding monomer according to claim 1, wherein, At the position corresponding to the first end of each support wall, there is a first arc edge that matches the shape of the outer wall surface of the cone and protrudes towards the voice coil, and any two adjacent first arc edges are connected at the edge, and the first arc edge is continuously attached to the outer wall surface of the cone in a circumferential direction.

3. The sounding element according to claim 2, wherein Any two adjacent first arc edges are connected at the corresponding edge to form a corner, and a plurality of the corners are at the same height of the cone along the first direction, so that a plurality of the first arc edges are sequentially connected in a circumferential direction to form the end edge of the first end in a skirt shape.

4. The sounding monomer according to claim 3, characterized in that, The cone is a circular cone, the diameter of the outer edge of the large end of the cone is d1, and the diameter of the outer wall surface of the cone where the second connection position is located corresponding to the corner is d2, wherein d1 / 3 ≤ d2 ≤ 2d1 / 3.

5. The sounding element according to claim 3, characterized in that a plurality of the corners are evenly distributed at intervals in a circumferential direction; and / or any two adjacent first arc edges are symmetrically distributed with respect to the corresponding edge.

6. The sounding element according to claim 1, wherein At the second end of each support wall, there is a second arc edge that matches the shape of the outer wall surface of the voice coil, and any two adjacent second arc edges are connected at the edge, and the second arc edge is continuously attached to the outer wall surface of the voice coil in a circumferential direction.

7. The sounding monomer according to claim 6, characterized in that, A plurality of the second arc edges are sequentially connected end to end in a circumferential direction to form the end edge of the second end in a complete circle shape, and the heights of all parts of the end edge of the second end along the first direction are the same.

8. The sounding element according to any one of claims 1 to 7, characterized in that, The number of the support walls is n, wherein n is an odd number greater than 1.

9. The sounding element according to any one of claims 1 to 7, characterized in that the end face of the first end is an inclined surface that matches the outer wall surface of the cone basin; and / or the end face of the second end is an inclined surface that matches the outer wall surface of the voice coil.

10. The sounding element according to any one of claims 1 to 7, characterized in that, The sounding element further includes a centering washer, the inner edge of the centering washer is connected to the position of the outer wall of the voice coil close to the end, and the second end is connected to the position of the outer wall of the voice coil between the inner edge of the centering washer and the end.

11. The sounding element according to claim 10, characterized in that, The distance between the inner edge of the centering support piece and the end part along the first direction is L1, and the distance between the second end and the end part along the first direction is L2, where L1 / 3 ≤ L2 < L1.

12. The sounding element according to any one of claims 1 to 7, characterized in that Each of the support walls is an equal-thickness support wall with a uniform thickness, and the thicknesses of the plurality of support walls are the same; the cone is an equal-thickness cone with a uniform wall thickness; Wherein, the thickness of the support wall is h1, and the thickness of the cone is h2, and h1 ≥ h2.

13. The sounding monomer according to any one of claims 1 to 7, wherein The area of the cone corresponding to the inside of the voice coil forms a convex portion protruding away from the voice coil; the support structure is an integrally formed part, and the first end is bonded to the first connection position, and the second end is bonded to the outer wall of the voice coil; and / or The area of the cone corresponding to the inside of the voice coil forms a through hole, a dust cap is provided outside the through hole, and the support structure and the cone are integrally formed parts.

14. An electronic device, characterized in that, The electronic device is applied with the sounding monomer according to any one of claims 1 to 13.

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